Norwegian Young Conservatives In 2017, Svenneby won the Norwegian Young Conservatives' elite course. Svenneby served as the second deputy leader of the Norwegian Young Conservatives from 2018 to 2020 under the leadership of
Sandra Bruflot. At the 2020 convention, he was elected to succeed her beating his rival
Amalie Gunnufsen in a 106–86 vote. He was re-elected in 2022 and 2024. He announced in October 2025 that he wouldn't be seeking re-election at the next convention in 2026. He resigned after being elected as the nationwide party's second deputy leader and was succeeded by Oda Sivertsen. During his tenure as leader, he went against the mother party regarding the
2011 Norway attacks and argued that the right wing of the political spectrum also had some responsibility in addressing far-right extremism. He caused some controversy following his party's victory at the 2023 school elections, held five days before the
2023 local elections, when he declared "the
Greta Thunberg generation dead". He later apologised for his comment and took self-criticism for it.
Party politics In November 2025, Svenneby announced his candidacy for the deputy leadership of the Conservative Party. The party's election committee designated him as second deputy leader on 11 December, alongside
Henrik Asheim as first deputy leader and
Ine Eriksen Søreide as leader. The trio were formally elected at the party's extrodinary convention on 14 February 2026.
Parliament Svenneby was elected as a deputy member for
Hedmark at the
2021 election. In
2025, he was elected as a deputy member for
Oslo. == Personal life ==